The default resource editor has been greatly improved in Visual Studio 17.11 (2024). https://learn.microsoft.com/en-us/visualstudio/releases/2022/release-notes-v17.11#resourceexplorer
With, for example, a grid view of all the languages.
Some more information: https://devblogs.microsoft.com/visualstudio/easier-localization-with-the-new-resource-resx-manager/